HOME >> BIOLOGY >> NEWS
Lake ecosystem critical to East African food supply is threatened by climate change

ARLINGTON, Va.- In an important new study directly linking climatic warming with the survival of lake organisms, researchers have found multiple lines of evidence showing that increasing air and water temperatures and related factors are shrinking fish and algae populations in a major lake. The lake holds 18 percent of the world's liquid freshwater and is a critical food source in East Africa.

Reporting in the August 14, 2003, issue of the journal Nature, Catherine O'Reilly of Vassar College, Andrew Cohen of the University of Arizona, Simone Alin of the University of Washington, Pierre-Denis Plisnier of the Royal Museum for Central Africa in Belgium, and Brent McKee of Tulane University in Louisiana, announce that climate change in the region is harming Lake Tanganyika's ecosystem, decreasing fish stocks by as much as 30 percent over the past 80 years.

Lake Tanganyika is large and deep, filling the chasm of a rift valley bordering the Democratic Republic of Congo, Tanzania, Zambia and Burundi. An ecosystem unto itself, the lake supports many types of fish. Only a few species are eaten by people, yet they supply 25 to 40 percent of the animal protein for the communities of that region. Recently, the fish supplies have diminished, and catches are shrinking.

"Our research provides the strongest link to date between long-term changes in lake warming in the tropics, recorded by instruments, and declining productivity of the lake's ecosystem, as seen in sediment cores," said Cohen. "This work provides a clear indication of the regional effects of global climate change, and especially global warming, on tropical lake ecosystems."

The researchers measured lake water temperatures, along with air temperatures and wind velocities, and compared data to equivalent records from the past eight decades. Those factors help determine how well water circulates within the lake, a critical factor for the distribution of nutrien
'"/>

Contact: Josh Chamot
jchamot@nsf.gov
703-292-7730
National Science Foundation
13-Aug-2003


Page: 1 2 3

Related biology news :

1. Carnegie Mellon researcher tests tools for protecting Anacostia River ecosystem from PCBs
2. Gulf of Maine marine ecosystem may have entered new phase
3. Pocket gophers serve as ecosystem engineers
4. New study to investigate demise of coral reef ecosystems
5. Study probes ecosystem of tree holes
6. All ecosystems are equally productive under drought conditions
7. Catastrophic shift in species diversity and productivity of an ecosystem
8. Biological oceanographers examine regime shifts in complex marine ecosystems
9. Freeing Nemo: Aquarium owners releasing non-native fish could endanger marine ecosystems
10. Pollution history documented through shell remains provides tool to study ecosystem change
11. Faster carbon turnover in basal food-chain levels in aquatic than terrestrial ecosystems

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/27/2019)... ... ... Shoreline Biome , a microbiome research company that develops tools for ... CEO and Karen Woodward as its VP of Business Development. , These two ... and expand the company’s sales worldwide. , Prior to joining Shoreline Biome, Bill McKenzie ...
(Date:8/27/2019)... ... August 27, 2019 , ... Advancements with ... This episode is scheduled to broadcast 4Q/2019. Check local listings for more information. ... investment and manufacturing company. The show will highlight how Debiopharm is working to ...
(Date:8/23/2019)... ... August 22, 2019 , ... R121 ... their acquisition in June of 2018. Along with the name change, this rebranding ... “Our goal was to create a cohesive brand that blended our core foundation ...
Breaking Biology News(10 mins):
(Date:9/8/2019)... NEW YORK (PRWEB) , ... September 04, 2019 ... ... New York Academy of Sciences announced today the three Winners and ... Supporting outstanding postdoctoral scientists from academic research institutions across New York, New Jersey, ...
(Date:9/4/2019)... ... September 03, 2019 , ... ... advanced delivery technologies, development, and manufacturing solutions for drugs, biologics, gene therapies, ... & Technology will present at the upcoming Nordic Life Science Days (NLS ...
(Date:8/29/2019)... ... August 29, 2019 , ... Scientists have mapped ... they hope will ultimately help protect the multibillion-dollar grape industry that produces juice, ... Technology faculty and alumni sequenced the microbiome found within tumors of grapevines afflicted ...
(Date:8/29/2019)... ... August 29, 2019 , ... Prof. Stephen ... Sustainable Medicines in Africa program, which includes a master’s degree in biotechnology innovation ... September 2nd through 13th, 2019. Topics to be addressed include Manufacturing, Quality, ...
Breaking Biology Technology:
Cached News: